(1) Use the following to help provide transmission security:
(a) No violation of radio silence.
(b) No needless chatter among operators.
(c) Transmit on directed nets only with permission.
(d) No excessive tuning or testing.
(e) No sending of an operator's personal name.
(f) Only authorized use of plain language.
(g) No association of classified and unclassified call signs.
(h) No association of address groups and call signs.
(i) Only authorized procedure words (prowords) used.
(2) Prowords are the voice equivalent of prosigns.
Using prowords
reduces the duration of transmissions.
(3) There are two correct methods for using call signs. The complete
call sign is used when entering a net. It is also used when requested by
the net control station (NCS) or another station in the net.
The
abbreviated call sign is used once the net is entered. The NCS directs the
use of abbreviated call signs on the net.
An example of a complete call
sign is Q3O47.
The abbreviated call sign is O47.
Abbreviated call signs
allow operators to more quickly identify themselves and stations they are
calling. This is a defensive EW technique.
(4) Correctly using the phonetic alphabet is needed to reduce
transmission time. This also ensures there is no confusion by the receiving
operator. Table 2-1, page 2-6, contains the authorized phonetic alphabet.
Table 2-2, page 2-6, contains the numerical pronunciation guide.
c. RATT uses frequency shift keying (FSK). FSK uses direct action from
a keyboard, perforated tape, or electronic memory storage. It can use clear
(unencrypted) or encrypted traffic.
It is a dependable means of
communication that integrates defensive EW techniques.
Sending a long
logistics report by single-channel radio invites enemy direction finding.
2-5
SS0135
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